Bohyun Bang / w7500-paho-mqtt

Paho MQTT Client example with W7500

Dependencies:   DHT MQTTforLecture WIZnetInterface mbed-src

Fork of w7500-paho-mqtt by Bohyun Bang

Code

WIZwiki W7500 with paho mqtt client.

Import programw7500-paho-mqtt

Paho MQTT Client example with W7500

Last commit 21 Sep 2015 by Bohyun Bang

You have to change

You have to use your ethernet(network) information.

MQTTEthernet.h

    uint8_t mac_addr[6] = {0x00, 0x08, 0xDC, 0x00, 0x00, 0x00}; // your mac address
    const char * ip_addr = "???.???.???.???"; // your ip
    const char * gw_addr = "???.???.???.???"; // your gateway
    const char * snmask = "???.???.???.???"; // your subnetmask

And you have to use your mqtt broker server information. Broker server ip address and port number listed bleow are available now. But I will close the mqtt broker server on July 15,2015.

main.cpp

    char* hostname = "104.199.146.45";
    int port = 1883;

Platform

WIZwiki W7500 [ https://developer.mbed.org/platforms/WIZwiki-W7500/ ] /media/uploads/bangbh/wizwiki-w7500.jpg

Component

YWRobot Easy module shield [ where to buy ] (This is not mbed component) /media/uploads/bangbh/ywrobot_esay-module-shield-v1.jpg

Test software

PC

MQTT-FX - A JavaFX based MQTT Client [ Home page ] /media/uploads/bangbh/mqtt-fx.png

Mobile(iPhone)

ZMQTT-UTILITY - MQTT Test utility|You can download from App store(iPhone). /media/uploads/bangbh/iphone-zmqtt-utility.png

Diff: main.cpp

Revision:
8:f837e0d255e8
Parent:
7:a5ead1402704
Child:
9:21574e058141
--- a/main.cpp	Mon May 04 22:47:02 2015 +0000
+++ b/main.cpp	Tue Jun 23 00:36:34 2015 +0000
@@ -1,50 +1,55 @@
-#include "mbed.h"
-#include "EthernetInterface.h"
-
-#define ECHO_SERVER_PORT   7
-
-int main (void) {
-    EthernetInterface eth;
-    eth.init(); //Use DHCP
-    eth.connect();
-    printf("\nServer IP Address is %s\n", eth.getIPAddress());
-    
-    TCPSocketServer server;
-    server.bind(ECHO_SERVER_PORT);
-    server.listen();
-    
-    while (true) {
-        printf("\nWait for new connection...\n");
-        TCPSocketConnection client;
-        server.accept(client);
-        client.set_blocking(false, 1500); // Timeout after (1.5)s
-        
-        printf("Connection from: %s\n", client.get_address());
-        char buffer[256];
-        while (true) {
-            int n = client.receive(buffer, sizeof(buffer));
-            if (n <= 0) break;
-            
-            // print received message to terminal
-            buffer[n] = '\0';
-            printf("Received message from Client :'%s'\n",buffer);
-            
-            // reverse the message
-            char temp;
-            for(int f = 0, l = n-1; f<l; f++,l--){
-                temp = buffer[f];
-                buffer[f] = buffer[l];
-                buffer[l] = temp;
-                }
-            
-            // print reversed message to terminal
-            printf("Sending message to Client: '%s'\n",buffer);
-            
-            // Echo received message back to client
-            client.send_all(buffer, n);
-            if (n <= 0) break;
-        }
-        
-        client.close();
-    }
-}
+#include "mbed.h"
+#include "EthernetInterface.h"
+
+#define ECHO_SERVER_PORT   7
+
+int main (void) 
+{
+    printf("Wait a second...\r\n");
+    uint8_t mac_addr[6] = {0x00, 0x08, 0xDC, 0x00, 0x01, 0x02}; 
+    EthernetInterface eth;
+    eth.init(mac_addr); //Use DHCP
+    eth.connect();
+    printf("Server IP Address is %s\r\n", eth.getIPAddress());
+    
+    TCPSocketServer server;
+    server.bind(ECHO_SERVER_PORT);
+    server.listen();
+    
+    while (true) 
+    {
+        printf("Wait for new connection...\r\n");
+        TCPSocketConnection client;
+        server.accept(client);
+        client.set_blocking(false, 15000); // Timeout after (1.5)s
+        
+        printf("Connection from: %s\r\n", client.get_address());
+        char buffer[256];
+        while (true) {
+            int n = client.receive(buffer, sizeof(buffer));
+            if (n <= 0) break;
+            
+            // print received message to terminal
+            buffer[n] = '\0';
+            printf("Received message from Client :'%s'\r\n",buffer);
+            
+            // reverse the message
+            char temp;
+            for(int f = 0, l = n-1; f<l; f++,l--){
+                temp = buffer[f];
+                buffer[f] = buffer[l];
+                buffer[l] = temp;
+                }
+            
+            // print reversed message to terminal
+            printf("Sending message to Client: '%s'\r\n",buffer);
+            
+            // Echo received message back to client
+            client.send_all(buffer, n);
+            if (n <= 0) break;
+        }
+        
+        client.close();
+    }
+}
+